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Set includes: conditioner to strengthen your hair Strengthens and strengthens | Transform fine, flat hair into wonderfully fuller looking hair with the strengthening Biotin Boost products Revitalising herbal fragrance | Enjoy the invigorating herbal fragrance of the HASK Biotin Boost strengthening collection. Completely or not at all thanks to triple strengthening. Makes your curls more voluminous, stronger and stronger. No sulphates, parabens, phthalates, gluten and drying alcohol. Not tested on animals.